HARMON-ST, a parish, in the hundred of RHAIADR, county of RADNOR, SOUTH WALES, 3 miles (N. N. E.) from Rhaiadr, containing 828 inhabitants. This parish, which derives its name from that of the saint to whom its church is dedicated, is pleasantly situated on the river Wye, by which it is separated from the adjacent parish of Cwm-toyddwr, and is about four miles in length, and, across the centre, nearly the same in breadth. The lands are but partially enclosed, and only a portion of them is under cultivation: slate is found in the neighbourhood, and some quarries are worked in the parish, which is intersected by the high road from Rhaiadr to Llanidloes, in the county of Montgomery. This place constitutes a prebend in the collegiate church of Brecknock, rated in the king's books at £3. 17. 34., and in the patronage of the Bishop of St. David's. The living is a discharged vicarage, in the archdeaconry and diocese of St. David's, rated in the king's books at £5. 15.24., endowed with £800 parliamentary grant, and in the patronage of the Bishop of St. David's. The church, dedicated to St. Garmon, and rebuilt in the year 1823, is a neat plain edifice, consisting of a nave, chancel, and aisles, without either tower or spire, having one small bell suspended beneath a shed. There are places of worship for Anabaptists and Calvinistic and Wesleyan Methodists; and Sunday schools, in connexion with the established church and the several dissenting congregations, are supported by subscription. The produce of some small charitable donations and bequests by unknown benefactors, amounting in the whole to fifty shillings, is annually distributed among the poor on New Year's day. The average annual expenditure for the support of the poor amounts to £326. 4.